YGO-Auto-Decklist-Checker

An automatic deck list checker I'm working on in my spare time.

For now, this takes as input a simple text file with specific formating.
Example formating:

---

3 Pot of Greed
3x Graceful Charity
2 Blue-Eyes White Dragon

1x Blue-Eyes Ultimate Dragon

3x Lightning Storm
3x Dark Ruler No More

---

It expects:

1. Single newline character in between the main, side, and extra
2. Full name of each card to be typed out
3. Number before each card name
4. Each card to be on its own line

It doesn't care about:

1. Case
2. "x" being after the number